<!DOCTYPE html>
<link rel='match' href='li_absolute_containing_block_ref.html'>
<style>
body {
    font-size: 64px;
}
li {
    position: relative;
}
section {
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: blue;
}
</style>
<li>X<section></section></li>
